X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fmtd%2Fnand%2Fndfc.c;h=8a68cb0a67a7fc226e1f805097561667b196d2c4;hb=d111bf99a81feacd3876010984a28575964ff0dc;hp=0729e0c9c02a5d00c250f4fa92f6b1eb8a49a5c4;hpb=c5d02825aeb39a74e4faf789bf94a8610c9a1d0f;p=oweals%2Fu-boot.git

diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c
index 0729e0c9c0..8a68cb0a67 100644
--- a/drivers/mtd/nand/ndfc.c
+++ b/drivers/mtd/nand/ndfc.c
@@ -10,23 +10,7 @@
  *	Thomas Gleixner
  *	Copyright 2006 IBM
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
@@ -37,6 +21,13 @@
 #include <asm/io.h>
 #include <asm/ppc4xx.h>
 
+#ifndef CONFIG_SYS_NAND_BCR
+#define CONFIG_SYS_NAND_BCR 0x80002222
+#endif
+#ifndef CONFIG_SYS_NDFC_EBC0_CFG
+#define CONFIG_SYS_NDFC_EBC0_CFG 0xb8400000
+#endif
+
 /*
  * We need to store the info, which chip-select (CS) is used for the
  * chip number. For example on Sequoia NAND chip #0 uses
@@ -113,7 +104,6 @@ static void ndfc_read_buf(struct mtd_info *mtdinfo, uint8_t *buf, int len)
 		*p++ = in_be32((u32 *)(base + NDFC_DATA));
 }
 
-#ifndef CONFIG_NAND_SPL
 /*
  * Don't use these speedup functions in NAND boot image, since the image
  * has to fit into 4kByte.
@@ -128,24 +118,22 @@ static void ndfc_write_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len
 		out_be32((u32 *)(base + NDFC_DATA), *p++);
 }
 
-static int ndfc_verify_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len)
+/*
+ * Read a byte from the NDFC.
+ */
+static uint8_t ndfc_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtdinfo->priv;
-	ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
-	uint32_t *p = (uint32_t *) buf;
 
-	for (; len > 0; len -= 4)
-		if (*p++ != in_be32((u32 *)(base + NDFC_DATA)))
-			return -1;
+	struct nand_chip *chip = mtd->priv;
 
-	return 0;
-}
-#endif /* #ifndef CONFIG_NAND_SPL */
-
-#ifndef CONFIG_SYS_NAND_BCR
-#define CONFIG_SYS_NAND_BCR 0x80002222
+#ifdef CONFIG_SYS_NAND_BUSWIDTH_16BIT
+	return (uint8_t) readw(chip->IO_ADDR_R);
+#else
+	return readb(chip->IO_ADDR_R);
 #endif
 
+}
+
 void board_nand_select_device(struct nand_chip *nand, int chip)
 {
 	/*
@@ -196,22 +184,17 @@ int board_nand_init(struct nand_chip *nand)
 	nand->ecc.mode = NAND_ECC_HW;
 	nand->ecc.size = 256;
 	nand->ecc.bytes = 3;
+	nand->ecc.strength = 1;
 	nand->select_chip = ndfc_select_chip;
 
-#ifndef CONFIG_NAND_SPL
+#ifdef CONFIG_SYS_NAND_BUSWIDTH_16BIT
+	nand->options |= NAND_BUSWIDTH_16;
+#endif
+
 	nand->write_buf  = ndfc_write_buf;
-	nand->verify_buf = ndfc_verify_buf;
+	nand->read_byte = ndfc_read_byte;
 
 	chip++;
-#else
-	/*
-	 * Setup EBC (CS0 only right now)
-	 */
-	mtebc(EBC0_CFG, 0xb8400000);
-
-	mtebc(PB0CR, CONFIG_SYS_EBC_PB0CR);
-	mtebc(PB0AP, CONFIG_SYS_EBC_PB0AP);
-#endif
 
 	return 0;
 }